645 Ventures

Activity from announced rounds

Activity in this selectionFintech

645 Ventures is an investment firm whose partners include Aaron Holiday and Nnamdi Okike. Its AI infrastructure and developer-tools coverage identifies Gimlet Labs, while its own communications connect the firm to Ellis.

Recorded funding activity

The recorded activity includes Gimlet’s Series B for a compiler and cloud platform that distribute AI inference across processor types. Seed financings for Ellis, Fish Audio and General Analysis cover private-credit operations, voice generation and security for AI agents. These examples describe announcements covered by RoundOS rather than the firm’s complete portfolio.

Sources
Rounds participated in
5
Confirmed lead rounds
—
5 roles undisclosed
New companies
5
First participation on record · 0 follow-on
Funding in participating rounds
$83.2M
5 disclosed · full round size, not this investor’s share

By stage

Seed2
Series A2
Series B1

By primary sector

Fintech4
Biotech1

By country

United States5

Rounds

5 in this selection
Rivo

Automatically moves idle cash into higher-yield accounts and back before bills are due

$2.7MSeed
Role not disclosed
Ellis

AI-native operations platform for private credit

$10MSeed
Role not disclosed
Variance

Builds AI investigative agents for risk and compliance

$21.5MSeries A
Role not disclosed
Condor Software

Provides financial intelligence platform for life sciences companies to unify clinical operational and financial data

$24MSeries A
Role not disclosed
Uptiq

Builds AI agents and orchestration platform for financial institutions like banks and credit unions

$25MSeries B
Role not disclosed